212241133 has 16 divisors (see below), whose sum is σ = 234908352. Its totient is φ = 190512000.

The previous prime is 212241131. The next prime is 212241157. The reversal of 212241133 is 331142212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212241133 - 2¹ = 212241131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212241133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212241131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261298 + ... + 262108.

It is an arithmetic number, because the mean of its divisors is an integer number (14681772).

Almost surely, 2^212241133 is an apocalyptic number.

It is an amenable number.

212241133 is a deficient number, since it is larger than the sum of its proper divisors (22667219).

212241133 is a wasteful number, since it uses less digits than its factorization.

212241133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its digits is 288, while the sum is 19.

The square root of 212241133 is about 14568.4979665029. The cubic root of 212241133 is about 596.4991810979.

Adding to 212241133 its reverse (331142212), we get a palindrome (543383345).

The spelling of 212241133 in words is "two hundred twelve million, two hundred forty-one thousand, one hundred thirty-three".